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| author |   Geert Uytterhoeven <geert+renesas@glider.be> | 2016-06-16 14:34:32 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2016-06-17 12:35:33 +0100 |
| commit | 50c7a0ef2d97e56c7ce2f1ea5fe1d8e25aadc1bb (patch) | |
| tree | c2181104840bce1515c2991bf33df385750d2090 /sound | |
| parent | Linux 4.7-rc1 (diff) | |
| download | linux-dev-50c7a0ef2d97e56c7ce2f1ea5fe1d8e25aadc1bb.tar.xz linux-dev-50c7a0ef2d97e56c7ce2f1ea5fe1d8e25aadc1bb.zip | |
ASoC: wm8940: Enable cache usage to fix crashes on resume
The wm8940 driver is using a regmap cache sync to restore the
configuration of the chip when switching from OFF to STANDBY, but does
not actually define a register cache which means that the restore is
never going to work and we trigger asserts in regmap. Fix this by
enabling caching.
Based on commit d3030d11961a8c10 ("ASoC: ak4642: Enable cache usage to
fix crashes on resume") by Mark Brown <broonie@kernel.org>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/wm8940.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8940.c b/sound/soc/codecs/wm8940.c index f6f9395ea38e..1c600819f768 100644 --- a/sound/soc/codecs/wm8940.c +++ b/sound/soc/codecs/wm8940.c @@ -743,6 +743,7 @@ static const struct regmap_config wm8940_regmap = { .max_register = WM8940_MONOMIX, .reg_defaults = wm8940_reg_defaults, .num_reg_defaults = ARRAY_SIZE(wm8940_reg_defaults), + .cache_type = REGCACHE_RBTREE, .readable_reg = wm8940_readable_register, .volatile_reg = wm8940_volatile_register, |